Bug: Clickhouse inf shows as null

A numeric value of `inf` in clickhouse shows as null in DBCode:

Clickhouse client:

<img width="648" height="247" alt="Image" src="https://github.com/user-attachments/assets/b1bf1d2e-a35a-4b71-b5e1-8b881cebf924" />

DBCode:

<img width="321" height="205" alt="Image" src="https://github.com/user-attachments/assets/d4bf9446-263c-476f-9886-f2b021f16c7b" />